This video demonstrates a very basic OpenGL (3.3) real time rendering application which I wrote. What you see is an object and a surface lit with diffuse light only. My application is written exclusively in C/GLSL and runs on Windows (no GLUT, just pure Windows API calls).
I'm experimenting with real time rendering on Windows platform and my goal is to learn a bit of OpenGL and refresh my (quite rusty) C skills. Follow me on twitter if you like: @LetZweindaut.